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Proceedings Paper

Piezoelectric paper speaker using a regenerated cellulose film
Author(s): Joo-Hyung Kim; Gyu-Young Yun; Jung-Hwan Kim; Jaehwan Kim
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Paper Abstract

Acoustic performance of regenerated cellulose electroactive paper (EAPap) as a thin flexible film speaker was investigated. The enhancement of piezoelectric properties was obtained by a simple mechanical stretching process. As a prototype of flexible paper speaker, the sound pressure level (SPL) of cellulose EAPap film was evaluated as a function of distance, speaker size and geometry. It was revealed that the higher acoustic output from a small rectangular shape in low frequency range, while circular one seems to be better than that of all rectangular type speakers in audible frequencies.

Paper Details

Date Published: 20 October 2009
PDF: 7 pages
Proc. SPIE 7493, Second International Conference on Smart Materials and Nanotechnology in Engineering, 749306 (20 October 2009); doi: 10.1117/12.840169
Show Author Affiliations
Joo-Hyung Kim, Inha Univ. (Korea, Republic of)
Gyu-Young Yun, Inha Univ. (Korea, Republic of)
Jung-Hwan Kim, Inha Univ. (Korea, Republic of)
Jaehwan Kim, Inha Univ. (Korea, Republic of)


Published in SPIE Proceedings Vol. 7493:
Second International Conference on Smart Materials and Nanotechnology in Engineering
Jinsong Leng; Anand K. Asundi; Wolfgang Ecke, Editor(s)

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